Sodium Hydrosulfide (NaHS) Supplier
- Molecular formula:
- NaHS
- Content:
- ≥ 70% NaHS
- Appearance:
- Yellow Solid Pieces
- CAS No.:
- 16721-80-5
- HS Code:
- 28301090
Sodium Hydrosulfide Specifications (NaHS ≥70%)
| Item | Unit | Content |
|---|---|---|
| Product Name | / | Sodium Hydrosulfide (NaHS) |
| Appearance | / | Yellow solid pieces |
| NaHS Content | % | ≥ 70% |
| Na₂S | % | ≤ 3.0% |
| Fe Content | ppm | ≤ 30 ppm |
| Water Insoluble Matter | % | ≤ 0.5% |
| Hazard Class | / | 8 |
| UN No. | / | 2949 |
Mining Flotation & Industrial Applications
YuXing sodium hydrosulfide (NaHS ≥70%) is supplied as yellow solid pieces for mining and industrial use. This sulfide reagent acts as a flotation regulator in copper, lead-zinc and other non-ferrous beneficiation — modifying ore surfaces and supporting selective separation when used with appropriate collectors.
NaHS provides a controlled hydrosulfide source distinct from fully sulfidic sodium sulfide (Na₂S). Browse our mining chemicals catalog or contact us for flotation process support.
Sulfidization Flotation: Selection and Dosing
Sulfidization restores a sulfide-like surface on selected oxidized minerals before collector addition. Underdosing can leave the surface incompletely activated; overdosing can consume collector, reduce selectivity or depress recovery. Reagent choice, addition point and staged dosage should therefore be established from ore-specific laboratory and plant trials—not copied from another circuit.
For a practical circuit guide, read Sulfidization Flotation with Sodium Sulfide and NaHS. Buyers can also review our mining chemicals and mineral processing supply support.
Na₂S vs NaHS: Procurement Comparison
| Decision factor | Sodium sulfide (Na₂S) | Sodium hydrosulfide (NaHS) |
|---|---|---|
| Sulfide source | Fully sulfidic and more alkaline | Hydrosulfide source with lower alkalinity |
| Typical selection basis | Ore mineralogy, pulp pH and existing reagent scheme | Ore mineralogy, pH control, dosing system and safety plan |
| Process control | Use test-derived dosage and staged addition where required; monitor plant response rather than relying on a universal setpoint. | |
Information Needed for a Formal Quote
- Required product and active-content specification
- Application, ore type and current reagent scheme
- Required quantity, packaging preference and destination port
- Limits for iron, insoluble matter or other critical parameters
- Import, dangerous-goods and batch-document requirements
Packaging and available batch documents depend on the confirmed grade, order and destination. TDS, SDS and CoA are coordinated after inquiry or order confirmation; public file downloads are not provided.
Why Choose YuXing NaHS
1. NaHS content ≥70% with Fe ≤30 ppm and water insoluble matter ≤0.5% — stable quality for reliable flotation regulator performance and process control.
2. Yellow solid pieces with Hazard Class 8 / UN 2949 documentation — practical handling with export-ready compliance support.
3. Batch-specific TDS, SDS and CoA can be coordinated after inquiry or order confirmation, together with export packaging and technical communication for mining and industrial customers.
Frequently Asked Questions
What is sodium hydrosulfide used for in mining?
NaHS is a sulfide reagent and flotation regulator in mineral processing circuits. It modifies sulfide mineral surfaces and supports selective separation in copper, lead-zinc and other non-ferrous ore beneficiation.
What is the difference between NaHS and sodium sulfide (Na₂S)?
Sodium hydrosulfide (NaHS) contains hydrosulfide ions and suits hydrosulfide dosing applications. Sodium sulfide (Na₂S) is a fully sulfidic reagent used in flotation, leather and dye production — YuXing supplies both for different process requirements.
What NaHS content does industrial sodium hydrosulfide require?
Industrial applications typically require NaHS content ≥70% with Na₂S ≤3.0%, Fe ≤30 ppm and water insoluble matter ≤0.5%. YuXing product meets these specifications with CoA verification.
What is the HS code and UN number for sodium hydrosulfide?
The export HS code is 28301090. This is a Hazard Class 8 chemical with UN 2949. YuXing provides TDS, MSDS and CoA to support customs clearance and regulated transport.
How is NaHS dosed in a flotation plant?
Yellow solid pieces are dissolved in water and dosed as a flotation regulator per metallurgical test recommendations. Typical dosage depends on ore type, pulp chemistry and target separation — plant trials are recommended.
How can I get a sodium hydrosulfide quotation?
Submit your application, required quantity, destination port and packaging preference via our contact page. Available batch documents can be coordinated after the inquiry or order is confirmed.
Shipment Photo:
Request a Quote
If you need sodium hydrosulfide (NaHS ≥70%) as a flotation regulator for copper, lead-zinc or industrial applications, contact YuXing with your required quantity, destination port and packaging requirements. Our team will provide a quotation and technical support.
Product Information Notice
- The values shown are typical reference information and are not a guaranteed sales specification. Final specifications are subject to the confirmed product, grade and batch COA.
- Packaging, transport method and hazard classification must be confirmed according to product grade, order quantity, destination regulations, shipping route and the current SDS.
- TDS, SDS/MSDS and COA files are provided according to product, batch and destination requirements. Public documents should not be treated as final delivery documents unless issued for the current batch.
- This page is for procurement discussion and technical selection reference only. It does not replace safety, regulatory, process design or site operating advice. Users must follow local regulations and the latest SDS.
